Geoege w



e. w. BADGER.

Boot-Tree.

No. 224,067. P aten ted Feb. 3, 1830.

'f-FEIERS, PHQTO-LITHOGRAPHER NASH NGTON D C UNITED STATES PATENT OFFICE.

GEORGE W.-BADGER, OE MALDEN, MASSACHUSETTS, ASSIGNOR TO GEORGE r P. COX, OF SAME PLACE. I

BOOT-TREE.

SPECIFICATION formingpart of Letters Patent No. 224,067, dated February 3, 1880.

7 Application filed November 18, 1879.

To all whom it may concern:

Be. it known that I, GEORGE W. BADGER, of Malden, in the county of Middlesex and State of Massachusetts, have invented certain 5 Improvements in Boot-Trees to be used in the manufacture of rubber boots, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, making part of this specification, in which Figure 1 is a side elevation of a boot-tree constructcd in accordance with my invention. Fig. 2 is a vertical section through the same. Fig. 8 is a horizontal section on the line a: of Fig. 1. Fig. 4; is a perspective view of the lower end of the leg portion of the boot-tree. Fig. 5 is a perspective view of the foot portion detached.

- In boot-trees used in the manufacture of vulcanized -rubber boots, as ordinarily constructed, the lower end of the long screw-bolt by which the leg and foot portions are secured together engages with a flat nut, which is secured within a recessin the foot portion formed at right angles to and intersecting the nearlyvertical aperture through which the screw-bolt passes.

invention is.an improvement on the invention set forth in Letters Patent No. 170,462, issued to me.

My invention has for its object to dispense with the aperture in the rear of the'foot portion for the reception of the nut, thus simplifying the coii'struction; and it consists in a boot-tree in whichthe foot portion is provided with attubular nut or threaded sleeve for the screw-bolt to engage with, this nut being introduced within the aperture through which the screw-bolt passes, and being secured in place. and prevented from being turned or withdrawn by a pin driven through it from the outside. i

To enable others skilled in theart to understand and .use my. invention, 1 will proceed to describe the manner in which I have carried it out.

In the said drawings, A represents the upper .portion or leg of the boot-tree, which is cut away at its lower end for the reception of the rear end of the foot B, the two portions being secured together by a long bolt or rod, a, which passes through the aperture 1) in the leg portion and enters the aperture 0 in the foot portion, the lower end of the bolt being provided with a screw-thread, which engages with a tubular nut or threaded sleeve, 01, which is of such diameter as to snugly fit the aperture c, and, after being introduced therein and forced down into place, is secured by means of a pin, 6, driven from the outside through holes in the sides of the nut, by which means it is prevented from turning around within the aperture 0, and also from being withdrawn by the upward strain of the screw-bolt a; and

by thus employing a tubular nut, (i, applied to the foot portion, as above described, instead of an ordinary flat, nut driven into an aperture or recess formed in the rear end of the foot-piece at right angles to the aperture c, asvheretofore, the construction of the tree is simplified and its cost reduced, while the liability of the nut being turned or otherwise displaced by being suddenly struck by the lower end of the connecting-bolt when inserted, as sometimes occurs with the old 0011- struction, is entirely avoided, the tubularnut d being always in the proper position to re ceive the screw-thread at the lower end of the bolt a. Furthermore, this tubular nut serves to strengthen that part of the foot piece through which it passes.

If desired, the aperture 0 and tubular nut d may extend entirely through the foot portion, the tubular nut being provided with a flange or head lying flush with the sole or bottom of the foot portion, which would afford additional resistance against any tendency of the screwbolt to withdraw the nut.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is- 0 A boot-tree for vulcanizing rubber boots having the foot portion B provided with an elongated tubular nut or internally-threaded sleeve, d, within the aperture 0, and secured by a pin, e, and the rear end beveled from the 5 center toward each side, as seen at f 6 6, and a leg portion,'A, having a correspondinglyinclined surface for the rear of the foot-piece to rest against, and provided with a securingscrew, a, the whole constructed and arranged too as set forth. 7 Witness myhand, this 15th day of November, AD. 1879.

GEORGE W. BADGER.

In presence of- P. E. TESGHEMAOHER,

W. J. CAMBRIDGE. 

